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Sale of Receivables - Schedule of Sale of Receivables (Details) - USD ($) $ in Millions | 9 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024
Transfer of Financial Assets Accounted for as Sales [Roll Forward] |  |
Beginning balance | $ 130 | $ 192
Sales of receivables | 60 | 60
Cash returned to purchasers | (165) | (241)
Outstanding balance sold to purchasers | 25 | 11
Cash collected, not remitted to purchasers | 0 | (1)
Remaining sold receivables | $ 25 | $ 10

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- Definition Transfer Of Financial Assets Accounted For As Sales, Amount + References No definition available. + Details
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- Definition Transfer of Financial Assets Accounted for as Sales, Cash Collected But Not Remitted, Amount + References No definition available. + Details
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- Definition Transfer Of Financial Assets Accounted For As Sales, Cash Proceeds Received for Assets Sold And Derecognized, Amount + References No definition available. + Details
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- Definition Transfer Of Financial Assets Accounted For As Sales, Receivables Sold And Derecognized During Period + References No definition available. + Details
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- Definition Transfer of Financial Assets Accounted for as Sales, Remaining Sold Receivables, Amount + References No definition available. + Details
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- Definition Transfer Of Financial Assets Accounted For As Sales + References No definition available. + Details
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Namespace Prefix: | drs_
Data Type: | xbrli:stringItemType
Balance Type: | na
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